Generate pyi for pyluxcore

[Pyrolistical]

Python pyi file should be provide along side so/dylib/pyd files to provide typing information. This would make pyluxcore more self documenting.

I tried mypy's stubgen, but the output is pretty bad

There is probably a smarter way to directly generate pyluxcore.pyi from https://github.com/LuxCoreRender/LuxCore/blob/master/src/luxcore/pyluxcore.cpp

In the worse case a pyluxcore.pyi could be hand maintained.

[Pyrolistical]

Could use boostorg/python#277

[CodeFHD]

@howetuft how do you view this in the context of the wheels project?

[howetuft]

I don't see the operational need. pyluxcore API is not too complex and not so many people use it. It's not worth the effort, both for writing it and maintain it in the future. Considering also the rarety of devs, should be closed, in my opinion.